11814997 has 2 divisors, whose sum is σ = 11814998. Its totient is φ = 11814996.

The previous prime is 11814991. The next prime is 11815007. The reversal of 11814997 is 79941811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11015761 + 799236 = 3319^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 11814997 - 2³ = 11814989 is a prime.

It is a super-2 number, since 2×11814997² = 279188308220018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11814991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5907498 + 5907499.

It is an arithmetic number, because the mean of its divisors is an integer number (5907499).

Almost surely, 2^11814997 is an apocalyptic number.

It is an amenable number.

11814997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11814997 is an equidigital number, since it uses as much as digits as its factorization.

11814997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 11814997 is about 3437.2950120698. The cubic root of 11814997 is about 227.7602190885.

The spelling of 11814997 in words is "eleven million, eight hundred fourteen thousand, nine hundred ninety-seven".